stealc | 6565ab8e7be0d3e8544a49cb90e79715df0120d03c187ba9443ab738ca4dca28

Resubmissions

21/07/2024, 04:24

240721-e1p6msthpf 10

21/07/2024, 04:24

240721-e1e1nswelp 10

Analysis

max time kernel
421s
max time network
423s
platform
windows11-21h2_x64
resource
win11-20240709-en
resource tags

arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
submitted
21/07/2024, 04:24

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General

Target

567jn7x.exe
Size

1.1MB
MD5

e8a1d35e54a6982c175c4351f3ce0dcd
SHA1

9e5c8167d0957701d549f4586f9b5e9861df5471
SHA256

6565ab8e7be0d3e8544a49cb90e79715df0120d03c187ba9443ab738ca4dca28
SHA512

6bb5a288d5fd7962e5bc80cb8785ecc67d83be49ec701bb61a88d7d3e0af90a0747d1f015506b07d2661becf98ac76f067cecf261d507b51dcfdbade9f31d78c
SSDEEP

24576:Xi+H+khU6fKwnSQM1BQjo0ejcik51r/rwuMGRvot:Xq6fKwnSQM1OrCarzsGRI

Score

10^/10

stealc qll discovery spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

QLL

http://85.28.47.70

Attributes

url_path
/744f169d372be841.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
1976	RegAsm.exe
1976	RegAsm.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 892 set thread context of 1976	892	567jn7x.exe	85

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1976	RegAsm.exe
1976	RegAsm.exe
1976	RegAsm.exe
1976	RegAsm.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 892 wrote to memory of 4576	892	567jn7x.exe	83
PID 892 wrote to memory of 4576	892	567jn7x.exe	83
PID 892 wrote to memory of 4576	892	567jn7x.exe	83
PID 892 wrote to memory of 2196	892	567jn7x.exe	84
PID 892 wrote to memory of 2196	892	567jn7x.exe	84
PID 892 wrote to memory of 2196	892	567jn7x.exe	84
PID 892 wrote to memory of 1976	892	567jn7x.exe	85
PID 892 wrote to memory of 1976	892	567jn7x.exe	85
PID 892 wrote to memory of 1976	892	567jn7x.exe	85
PID 892 wrote to memory of 1976	892	567jn7x.exe	85
PID 892 wrote to memory of 1976	892	567jn7x.exe	85
PID 892 wrote to memory of 1976	892	567jn7x.exe	85
PID 892 wrote to memory of 1976	892	567jn7x.exe	85
PID 892 wrote to memory of 1976	892	567jn7x.exe	85
PID 892 wrote to memory of 1976	892	567jn7x.exe	85

C:\Users\Admin\AppData\Local\Temp\567jn7x.exe
"C:\Users\Admin\AppData\Local\Temp\567jn7x.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:892
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4576
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2196
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/892-0-0x0000000000830000-0x00000000009A6000-memory.dmp

Filesize
1.5MB

Download
memory/892-1-0x0000000000C90000-0x0000000000C91000-memory.dmp

Filesize
4KB

Download
memory/892-5-0x0000000000830000-0x00000000009A6000-memory.dmp

Filesize
1.5MB

Download
memory/1976-2-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/1976-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/1976-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/1976-7-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1976-79-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download